US Patent Issued to Wuhan Institute of Technology on March 31 for "Non-metal catalyst for synthesizing polycarbonate by CO 2 and preparation method therefor" (Chinese Inventors)

ALEXANDRIA, Va., March 31 -- United States Patent no. 12,589,384, issued on March 31, was assigned to Wuhan Institute of Technology (Wuhan, China).

"Non-metal catalyst for synthesizing polycarbonate by CO 2 and preparation method therefor" was invented by Qun Yi (Wuhan, China), Lijuan Shi (Wuhan, China), Mingyue Qiu (Wuhan, China) and Haonan Wu (Wuhan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A non-metal catalyst for synthesizing polycarbonate by CO2 and a preparation method therefor are provided. The preparation method of the non-metal catalyst includes the following steps: dissolving a hydroxyl functionalized organic ammonium halide monomer, a quaternary phosphonium salt monomer, and a hydroxyl...